US2394296A

US2394296A - Electric machine

Info

Publication number: US2394296A
Application number: US523807A
Authority: US
Inventors: Farrell William
Original assignee: Individual
Current assignee: Individual
Priority date: 1944-02-25
Filing date: 1944-02-25
Publication date: 1946-02-05
Anticipated expiration: 1963-02-05

Description

Feb. 5, 1946. l w. FARR'r-:LL 2,394,295

I ELECTRIC MACHINE Filed Feb. 25, 1944 2 sheets-sheet 1 ffy] 24 25 26 29 .70 jfywzar Feb. s, 1946. w. FARRELL 2,394,296

ELECTRIC MACHINE Filed Feb. 25, 1944 2 Sheets-Sheet 2 f7? z/'en for Maf/Zia??? Waffe/ Patented Feb. 5, 1946 lUNITED STATES PATENT OFFICE `ELECTRIC MACHINE William Farrell, Philadelphia, Pa.

Applca'tionlFebruary' 25, 1ML-Serial1N05f523807 'Clams. (Cl. 172-136) d `This invention relates to an electric `machine or engine rand the object -of the invention is to provide such a machine in which vone 'or more electric motorsfare mounted in a rotatingbody to increase the heft of said body'asa flywheel orrotor and permit `thesame to be driven more steadily and uniformlybya small or light electric motor todevelop the full capacity ofthe motor.

VAncthervobject is to improve the material capacity of `electric motors `compared to other mountings `and Adriving mechanisms employed "in electric machines or engines, and to develop lthe same `'to full eii'iciency and fitness for certain uses, particularly in connection or'combination with a novel arrangement of gear trains for stepping up the driving eifect and the `external connection or coupling thereof to va driven unit, such as in driving a generator, compared lto producing electric current by wind, water ror steam.

A further object is to provide an improvement upon the device `shown in my prior Patents Nos. 931,743 dated August 24, 1909, and 1,610,666 dated December 14, 1926, and particularly `as `to the driving arrangement or gearingemploying vauxiliary driving or countershafts, so that the driving veiectfat both yor `opposite sides is rendered uniform instead of uneven, and so that yoney side willnot tend to runahead or lag behind the other with resultant increase in friction, torque, binding or loss `of power and eiciency, thereby enabling the machine to run more smoothly and evenly with moreeicient results.

Further objects and advantages will appear and be brought outmore fully in the following specification, reference being had to thefaccompanying drawings, in which:

Fig. 1 is a side elevation of an electric machine or engine `constructed in accordancewith my invention.

Fig. 2 is a sectional view thereof taken on'the line 2--2 of Fig. 1.

Fig. 3 is a sectional View taken ron the line 3-3 of Fig. 2, and

Fig. 4 vis a sectional view taken on the'line 4-4 of Fig. 2.

vReferring more particularly to Lthe drawings indetail, vIll designates a frame having spaced sides II with bearings I2 designed to rotatably supporta horizontal shaft I3 suitably held vfrom end 'thrust and towhich a pulley I4 may be xed at one end to receive a belt for taking oir power from the shaft, although any other suitable means may be provided for this purpose. A hollow cylindrical body or casing I5 is hung on the Ybearings `of the'frame and maybe fixed Lor keyedto'the shaft I3 as indicated at lIl'to yrotate between the sides of the frame. Large fgears I1 are s'tationarily mountedfon theframe and 4may be bolted las indicated r`at I8 tothe inside of the ysidesII y'thereof around the bearings I2. One of the gears may yhave its `Vhub `I9 projecting inwardlyrto engageoneside ofthe body I5 which is inthe form of ua hollow cylindrical casing v'or the pulley I4 `for transmission to a suitable mechanism to be ydriven such as a dynamo, machinery.

or otherwise.

The enlarged outer -portion2-2 of the-web "2| is provided with one or more, preferably v`a plurality of cavities *26 in which electric motors 21 are mounted and xed in anyf'suitable way asindicated at 28 such as by means of bolts or collars yand the armature of each motor has a shaft 2'9 'projecting in opposite *directions on which wheels or pinions 13!) are 'xed to mesh 'with larger wheels or pinions 3| xed -or keyed to transverse-shafts 32 rotatably Isupported 'in bearings formed in the enlarged web portions 22 and bearings 33 in the sides of the rotatable body I5. Suitable spacing collars 34 may be provided on the Shafts to take upfend thrust atthe bearings and the 'ends of the shaft yprojectoutwardly of the sides ofthe body `I5'to mount `wheels or pinions 35 with intermediate spacing `collars -36 andwhichmesh'with the stationary-tracks'orV gear wheels yI'I so as to'revo'lve vabout the same. It should befnoted that the :motors and their shafts are all equidistantly spaced from the a-Xis vof rotation formed by the shaft I3 and thus are concentric thereto as are the shafts 32and-gears iixed thereonso that'parts will rotatezin unison without undue friction. In the space `provided between `=the side. Awalls of the 'body I5 yor ythe cylindrical casing or shell forming the-same, the hub fIBWprojects `inwardlyfat one `side :and at the other side, an insulating plate 31 is secured to the side of the body I5 as indicated at 38 and carries a pair of

conductor rings

39 and 40. An electric connection may be made between the motors 21 and the

rings

39 and 40 through the medium of Wires 4I and 42. Brushes 43 and 44 may be mounted in an insulation plate or block 45 held stationary at one side of the frame and may be suitably secured thereto or to one of the stationary gears I1 as indicated at 46. An electric current may be supplied to the brushes by feed or

line wires

41 and 48 with an interposed switch 49 for controlling the same, so that when the .circuit is closed, current will be supplied by the brushes to the annular contacts or

conductors

39 and 45 as the latter revolve in contact with the brushes to supply the motors 21 with the necessary current to drive them. The armatures of the motors will thereby revolve and the pinions 3D will be driven to drive the pinions 3I and shafts 32 and thus the pinions 35 which thereby travel around the stationary tracks or gear wheels I1 causing revolution of the body I5 from which power may be transmitted as previously explained. Of course, one or more motors may be employed and should be mounted in the body I5 so as to properly balance the same. By reason of the motors driving the shafts 32, preferably at both sides or ends of the motors, a uniform driving effect will be produced so that one side will not tend to race or run ahead of the other or lag behind the other with resultant increase in friction, torque, binding, or loss of power and eiiiciency thereby enabling the machine to run more smoothly and evenly with more efficient results. In other words, the driving effect produced by the use of the auxiliary or countershafts 32 at both or opposite sides, is rendered uniform instead of uneven and the result will also be to increase the heft or weight of the body as a ily wheel or rotor to permit the same to be driven more steadily and uniformly with a small or lightweight electric motor to develop the full capacity of the motor or motors and the highest possible efficiency for the production of current, driving of machinery or otherwise.

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having thus described my invention, what I claim is new and desire to secure by Letters Patent is:

l. An electric machine of the class described comprising a revoluble body, stationary circular tracks, electric motors mounted within said revoluble body, gears mounted on opposite ends of the armature shafts of the motors, countershafts rotatably mounted in the body, gear wheels spaced apart on the countershafts and engaging the gear wheels of the motors, and gear wheels on the opposite ends of the countershafts, and engaging the circular tracks.

2. An electric machine of the class described comprising a revoluble body, electric motors mounted within said revoluble body, gears mounted on opposite ends of the armature shafts of the motors, countershafts rotatably mounted in the body, gear wheels on the countershafts engaging the gear wheels of the motors, gear wheels on the ends of the countershafts, a shaft rotatably supporting said revoluble body, gear wheels stationarily mounted and engaged by the last named gear wheels on the countershafts so that the latter will revolve therearound and means for transmitting power from the revoluble body or shaft thereof.

3. An electric machine of the character described including a frame having bearings, a

. shaft rotatable in the bearings, gear wheels fixed to the frame around the shaft, a hollow two part cylindrical body fixed to the shaft and having a web with enlargements provided with chambers, electric motors fixed in said chambers and having gear wheels on the ends of the armature shafts thereof, countershafts transversely of the body within the motors, gear wheels on the countershafts meshing with the second gear wheels, the ends of the countershafts projecting outwardly of the sides of the body and having gear wheels thereon meshing with the stationary gears, annular contacts carried by and insulated from the body to rotate therewith, stationary brushes engaging said contacts and insulated from the stationary gears and frame, and current conductors connected to the brushes.

4. In an electric machine, a rotary body comprising sections having coacting cavities forming a chamber, a shaft keyed to the body, a frame having side bearings for the shaft, an electric motor held in the chamber and having its armature shaft within the body, a pinion on the armature shaft, a countershaft having bearings in the body and projecting outwardly thereof, a pinion on the countershaft meshing with the first pinion, a gear secured to the frame at one side of the body, a pinion on the countershaft outwardly of the body and meshing with the gear, contact rings mounted on one side of the body and insulated therefrom, electrical connections between the rings and motor, brushes fixed outwardly of the rings and engaging the same, and lead wires connected to the brushes.

5. In a multiple motor electric machine, a rotary cylinder having closed sides and a hub, a radial web in the cylinder, said cylinder comprising two semi-cylindrical sections secured together, chambers in the web extending into each section of the web, an electric motor mounted in each chamber and having its shaft projecting from the web at each side within the cylinder, pinions xed to the shaft ends, auxiliary shafts bearing in the web and sides of the cylinder inwardly of the motors and projecting outwardly of the cylinder sides, pinions fixed on the auxiliary shafts within the cylinder and meshing with the aforesaid pinions, pinions fixed on the outer ends of the auxiliary shafts, a frame having side bearings, a shaft keyed to the hub of the cylinder and journaled in the bearings, gears fixed to the side bearings and meshing with the last mentioned pinions outwardly of the cylinder, insulated contact rings mounted on one side of the cylinder and electrically connected to the motors, insulated brushes mounted adjacent a gear at one side bearing, each to engage a ring, and a current supply connected to the brushes, said shaft keyed to the hub of the cylinder constituting power take-off means.

WILLIAM FARRELL.